Hydrocarbon-burner.



L, M. BOWMAN.

HYDROCARBON BURNER.

APPLICATION FILED MAR-10.1%?-

1,2%1,33v PatentedSept 25, 1917.

2 SHEETS-SHEET 1- L. M. BOWMAN HYDROCARBON BURNER. APPLICATlON FILED MAR. to, I917.

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PatenteelSept. 25, 1917.

2 SHEETS-SHEET 2- lflflfiam mam LEVI M. BOWMAN, OF TULSA, QKLAHOMA.

HYDROCA-RBON-BURNER.

Application filed March 10, 1917. Serial No. 153,893.

To all whom it may concern.

Be it known that I, LEVI M. BOWMAN, a citizen of the United States, residing at Tulsa, in the county of Tulsa and State of Oklahoma, have invented certain new and useful Improvements in Hydrocarbon- Burners; and I do hereby declare the following to be a full, clear, and exact descrip- The object of the present invention is to improve the construction of hydro-carbon burners and to provide a simple, practical and eflicient hydro-carbon burner of strong, durable and comparatively inexpensive construction designed for burning kerosene and equipped with means for cracking or breakin up the kerosene into a gas and of enab ing the same tobe fed to the burner without producing breathing or putting of the latter.

A further object of the invention is to provide a kerosene hydro-carbon burner of this character adapted to enable kerosene to burn similar to natural gas with a blue, transparent, odorless and sootless or smokeless flame, and equipped with means-for preventing the accumulation of foreign matter, such as amorphous Wax, etc., from'col lecting at the jet opening thereby eliminating care and attention from the burner and making the latter fool-proof. Another object of the invention is to provide a hydrocarbon burner which will be practically noiseless and which will be capable of producing from kerosene a gas the equivalent in heat intensity of any gas employed for cooking purposes.

With these and other objects in view, the

invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings:

Figure 1 is a plan view of a hydrocarbon 'ings.

burner constructed in accordance with this invention.

Fig. 2 is a central vertical sectional view of the same. i v

Fig. 3 is a horizontal sectional view on the line 33 of Fig. 2.

Fig. 4 is a similar view on the line 4-t of Fig. 2.

Fig. 5 is a detail view of the stem of the needle valve. 1

Like numerals of reference designate corresponding parts in the several figures of the drawings.

In the accompanying drawings, in which is illustrated the preferred embodiment of the invention, the burner, which is designed for burning kerosene or coal oil witha blue flame, comprises in its construction a substantially hemispherical body consisting of a casting cored-to form an annular cracking space or chamber 1, an inner ball or member 2 and'an outer substantially hemispherical shell or jacket 3, which is connected with the central ball-shaped member 2 at the bottom and at the top, as clearly illustrated in Fig. 2- 0f the'draw- The body is provided at the top with a horizontal top portion 4 preferably in the form of a disk and provided with flame-distributing openings 5 arranged as shown in Fig. 1 of the drawings and tapered upwardly.

Secured to the periphery of the circular top 4 of the body is an outer cylindrical casing 6 constructed of sheet metal or other suitable material and forminga casing or Specification of Letters Patent. Patented Sept. 25, 191?, v

housing and an outer wall for the burner.

The lower end of the outer shell or casing 6 is open and the upper end is pierced by I screws 7 which fasten the casing 6 to the top 4, but any other suitable means may of course be employed for this purpose. Within the casing 6 is arranged an upper inverted truncated cone 8 constructed of sheet metal or other suitable material and secured at the lower'edges to or otherwise connected with the top of a truncated lower cone 9, also constructed of sheet metal. The upper cone is shown provided with an annular flange 10, which fits within the truncated upper end or top of the lower cone 9. The cones or conical or tapered members 8 and 9 may be mounted in any desired manner andthey form an annular space 11 between them and the outer casing 6. The upper downwardly tapered member 8 is arranged in spaced relation with the outer jacket or shell 3 and it is pierced by a horizontal inlet plpe 12,

' which extends through the outer casing 6 site the pipe 12, and the said arcuate pipe 14 extends downwardly through the upper tapered member 8 and also through the lower member 9 and is connected at its lower end 16 to a needle valve 17. The needle valve 17, which is provided at the top with a jet opening 18, has a packing nut 19 at the bottom and is provided with an adjustable valve stem or member 20 having a reduced portion or needle 21 at its upper end extending through the jet opening and adapted by the adjustment of the needle valve to maintain the jet opening in a clean condi-. tion by removing the foreign matter such as amorphous wax, etc., from the said opening.

The movable or adjustable member 20, which is slidable in the casing of the needle valve, is connected with an operating lever 22 by a pin or pivot 23, which operates in a slot 24 of the said lever 22. The lever 22, which extends through a slotor opening 25 at the front of the casing 6, is pivoted by rivets or pins 26 to aprojecting ear or flange 27 preferably formed integral with the easing 6 and bent outwardly and rearwardly as shown, the rear end of the operating lever extending through the slot or openin 28 formed by the cutting of the material 0% casing to form the projecting supporting flange or ear.

The kerosene or coal oil is designed to be placed in any suitable tank at an elevation of from two to eight feet above the burner 1n order to feed the oil .by gravity to the gas generating body.

The oil being introduced into the generator at the front is turned into gas in the cracking chamber between the central ballshaped member and the outer jacket and the gas passes out through the arcuate pipe 14 on the opposite side of the jacket from the inlet pipe and flows downwardly to and through the needle valve jet aperture, which in practice is designed to be from twentytwo to thirty-five one-thousandths of an inch in diameter, the size of the needle valve being regulated to correspond with the size of the burner. The gas passes upwardly through the open top of the lower upwardly tapered truncated cone or member 9 to the bottom of the cracking jacket at the center thereof and ignites and burns at that point,

the I and from such point the burning gases pass amount of heat developed is regulated by raising and lowering the adjusting or operating lever, which in turn adjusts the slidable valve stem or member which is tapered at the upper portion at 28. The needle valve serves two very important purposes viz., to adjust the flame as desired from a very small one to a large hot flame and to keep all foreign matter, such as amorphous wax, etc.,

from collecting in the jet opening. This accumulation of amorphous wax in other types of burners has caused considerable trouble, but the burner by virtue of the needle valve entirely eliminates this trouble, as in adjusting the height of the flame the wax and foreign matter is entirely cleaned from the jet openings and as it takes several hours before a suflicient amount accumulates to cause trouble, the adjustment of the burner takes care of such accumulation and foreign matter and renders the burner fool-proof.

The burner is practically noiseless and this is accomplished by having easy passages for the air and gas. The air is conducted to the, mixing chamber or space in which the air and gas mix, by the truncated conical lower member, and the vapors from jet opening 18 strike the hemispherical shell of the cracking jacket and from that point they take an easy passage to the flame-distributing plate. The flame is equivalent in heat intensity to any gas used for cooking purposes. By actual test it was found that one quart of water can be raised to boiling from 60 Fahrenheit initial temperature in an open vessel eight inches in diameter in one and one-half minutes time by'a burner of the size illustrated in the drawings.

To generate or start the operation of the burner it is necessary for the cracking chamber to become heated and this can be easily accomplished by placing a small quantity of alcohol, gasolene or other inflammable liquid in an asbestos filled shallow tray. The inflammable liquid is ignited and placed directly beneath the open end of the casing 6 and the lower cone or tapered member 9 will cause all the heat to be carried upward One of the walls of the slot 25 is toothed or serrated at 26 to provide a positive engagement' with the lever for holdlng the latter in its adjusted position. The lever is I provided With an engaging portion to cated within the upper member and generating device and counteract with the teeth or serrations, but any other suitable means may of course be employed for this purpose.

What is claimed is:

1. A hydro-carbon burner including an outer casing, upper and lower oppositely tapered members arranged within the cas ing and connected at their adjacent ends and forming an intervening space between them and the casing, said space tapering upwardly and downwardly from, an intermediate point, a gas generating device 10- rovided with an interior cracking cham er, an inlet pipe connected with the cracking chamber for supplying oil to the same, and a gas outlet pipe extending downwardly from the cracking chamber and provided with a valve located within the said lower member below the generating device.

2. A hydro-carbon burner includin an outer casing, upper and lower opposltely tapered members arranged within the casing and connected together at their adjacent ends and united at their outer ends to the casing and forming an intervening space between them and the casing, a gas generating device located within the upper member in spaced relation with the same and provided with an interior cracking chamber, an inlet ipe connected with vthe cracking chamber or supplying oil to the same, and a gas outlet pipe extending from the cracking chamber to a point beneath the rovided with a needle valve for controlling the discharge of the gas.

3. A hydro-carbon burner including an outer cylindrical casin upper and lower oppositely tapered mem ers arranged Within the casing and connected at their adjacent ends and forming an intervening space between them and the casing, the upper member consisting of a truncated cone united at its upper edge to the casing adjacent the upper edge thereof, a gas generating device located within the u per member and rovided with an interior cracking cham er, an inlet pipe connected with the cracking chamber for supplying oil to the same, and a gas outlet pipe extending from the cracking chamber to a point beneath the enerating device and provided with a nee le valve for controlling the discharge of the gas, said needle valve being provlded at the top with a jet opening and having a valve stem or member coacting with the opening, said valve stem or member being provided with a reduced portion or needle operating in the opening to clean the same in the adjustment of the valve.

4;. A hydro-carbon burner including a casing provided with opposite openings and having a projecting flange at one of the openings, a generating device mounted within the casing and having a cracking chamber, a gas outlet pipe extending downwardly from the said chamber and provided below the generatin device with a needle valve having a vertically movable stem or member, and an operating lever connected at an intermediate point with the valve or member and extending through the openings of'the casing, said lever being pivoted .to the support or flange at one of the openings of the casing.

5. A hydro-carbon burner including a casing open at the bottom, an upper inverted truncated cone located within the casing, a lower truncated cone tapered upwardly and connected at the top with the bottom of the upper cone, and a generating device located within the upper cone in spaced relation with the same and provided with a cracking chamber and having a horizontal top portion provided with flame-spreading open: ings, an oil inlet pipe connected with the cracking chamber, a gas outlet pipe extendin from the cracking chamber from one si e thereof to a point below the generating device, and a valve mounted on the lower end of the gas outlet pipe for controlling the discharge of gas.

6. A hydro-carbon burner including a casing open at the bottom, an upper inverted truncated cone located within the casing, a lower truncated cone tapered upwardly and connected at the top with the bottom of the 105 upper cone, and a generator consisting of a substantially hemispherical body located within the upper cone and rovided with an annular cracking chamber orming an inner ball shaped portion and an outer jacket or 110 wall, an inlet pipe connected with the cracking chamber for supplying oil to the generator, a gas outlet pipe extending from the cracking chamber to a point below the generator, and a valve mounted on the lower 115 end of the gas outlet pipe.

7. A hydro-carbon burner including an approximately hemispherical generator body having an annular cracking chamber forming an interior ball shaped portion and an '5 tendin 'naeaeee I, outer jaicket, said body being provided at the top with an integral outwardly extending horizontal flange provided. with"fiamespreading openings, a as outlet pipe exfrom the crac 'ng chamber to a point 'elow the generator, and a valve mounted on the lower end of the gas outlet P p I 9. A hydro-carbon burner comprising a 10; substantially vertical casing, means located within the upper portion of the casing for heating and burning the fuel, said means including a depending tube, a needle valve casing connected with the tube and having 15a gas outlet, a reciprocatory valve member consisting of a stem cooperating; with the gas outlet for controlling the passage of gas therethrough, said stem bedng provided with a rigid longitudinally disposed needle ex-' tending through the gas outlet and forming a cleaning device, a lever extending across the casin and pivoted at one end to the same, sai lever being connected with the stem for reciprocating the latter to clean the outlet, and means carriedby the casing for locking the lever in its adjustment, sa1d le- -ver extending exteriorly of the casing.

In testimony whereof I aflix my signature in presence of two witnesses.

' LEVI M. BOWMAN.

Witnesses:

L. W. MASON, TOM A. GRIFFITH. 

